查询词典 tack welding

We have more than 100 different type welding machine,including traditional welding maching,argon welder,gas shielded welding machine,auto-weding machine.

拥有上百台不同类型的焊接设备，包括普通电焊、氩弧焊、气体保护焊、自动焊等，可以满足不同要求、不同材质的产品焊接。

Renqiu City, Hebei Province, Richwood Welding Equipment Co., Ltd.(formerly Renqiu City Huifeng Welding Equipment Factory) is located atthe original scenery of the banks of Baiyangdian, my company was founded in 1975, are the production of CO2 gas shielded welder , the professional manufacturer of welding torch.

河北省任丘市嘉丰焊接设备有限公司（原任丘市惠丰焊接设备厂）座落在冀中平原，风景秀丽的白洋淀之畔，我公司始建于1975年，是生产CO2气体保护焊机、焊枪的专业厂家。

Gas metal arc welding is the main welding method in welding production.

熔化极气体保护焊是焊接生产中常用的焊接方法之一。

Department can not repair welding welding Welding and machining should be cleared of the original; 3, remove the screw, loop cleaning, replacement of defective parts, ground sealing and connecting seat seal surface, re-assembly.

五、关闭件脱落产生泄漏：原因： 1、操作不良，使关闭件卡死或超过上死点，连接处损坏断裂； 2、关闭件连接不牢固，松劲而脱落； 3、选用连接件材质不对，经不起介质的腐蚀和机械的磨损。

Based on the construction and weld joint of box-type head frame ,the characteristics of MAG welding and submerged-arc welding are discussed,it is proved that by using these two efficient methods,the welding quality is highly improved,and the efficiency is also raised.

从箱式井架的结构形状和焊缝接头形式出发，针对MAG焊和埋弧焊的特点进行了论述，生产结果证明，通过两种优质、高效方法的运用，使焊接质量得到了保障，生产效率得到很大提高。

Mechanical properties and hardness of the welding joint was tested, and microstructure of welding wire and welding joint were observed via OM, XRD, TEM and SEM. Analysis and explanation in theory were also given.

测试了焊接接头的拉伸力学性能和硬度分布规律，采用金相显微镜、X射线物相分析、透射电子显微镜和扫描电子显微镜观察了焊丝合金和焊接接头不同区域的显微组织结构，并从理论上进行了分析和解释。

The results show that, the coefficients of welded joints are both greater than 0.9, but the yield strength of weld joint filled with Al-Mg-Zr-Sc welding wire is greater 100 MPa than that of filled with Al-Mg-Zr welding wire. It indicates that the Al-Mg-Zr-Sc welding wire is the best alteration of filling materials to weld of Al-Mg-Sc alloy.

但采用Al-Mg-Zr-Sc合金焊丝为填充材料时，焊缝晶粒组织明显细化，熔合区形成的细小等轴晶层提高了基材与焊缝填充材料的结合力，焊接接头的屈服强度比采用Al-Mg-Zr合金焊丝为填充材料时提高了100 MPa，显著提高了Al-Mg-Sc合金焊接构件的许用强度，因此焊接Al-Mg-Sc板材更宜采用Al-Mg-Sc-Zr焊丝。

The invention relates to a method for preventing a top metal layer of packaging chips from fracturing under high temperature, which avoids the fracture of the top metal layer caused by the inter-diffusion of a gold ball, an aluminum welding pad and a top layer metal by introducing a lower metal layer to the joint between the top layer wire and the aluminum welding pad and driving a metal plug to the joint between the top metal layer and the lower metal layer and a metal plug to the joint between the lower metal layer and the aluminum welding pad.

一种防止封装芯片上的顶层金属层在高温下断裂的方法，通过在顶层金属线和铝焊垫之间连接处引入下层金属层，并在顶层金属层和下层金属层之间的连接处以及下层金属层和铝焊垫之间的连接处打金属插塞，避免了因金球、铝焊垫以及顶层金属相互扩散造成的顶层金属层断裂。

The anti-interference design of pipe welding robot is the key of pipe welding process stability,in which the one of main effects is the anti-interference circuit design of pipe welding robot.

在电弧强干扰下，管道焊接机器人抗干扰设计成为管道焊接过程稳定性关键，其中管道焊接机器人抗干扰电路设计是主要影响因素之一。

This plant is a professional enterprise that produces NBC160-630 welding torch, Panasonic, OTC, Binzel, Lincoln, Miller, ESAB, Kemppi, series Wire-welding guns; shield cup, tip, and spare parts of CO2 welding torch. Please visit our web-site in your convenience.

任丘市超迪焊接设备有限公司本公司是多年生产NBC160-630焊枪，松下、OTC、宾采尔、林肯、米勒、伊萨、南斯拉夫、拉丝系列等离子焊枪；电极、割嘴、氩弧焊枪等各种CO2焊枪及配件的专业公司。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼